/**
 * Copyright 2018 人人开源 http://www.renren.io
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.jy.framework.sys.shiro;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.jy.framework.sys.service.SysUserService;
import com.jy.framework.utils.Constant;
import com.jy.framework.sys.entity.SysMenuEntity;
import com.jy.framework.sys.entity.SysUserEntity;
import com.jy.framework.sys.dao.SysMenuDao;
import com.jy.framework.sys.dao.SysUserDao;
import org.apache.commons.lang.StringUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.authc.credential.CredentialsMatcher;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.*;

/**
 * 认证
 *
 * @author chenshun
 * @email sunlightcs@gmail.com
 * @date 2016年11月10日 上午11:55:49
 */
public class UserRealm extends AuthorizingRealm {
    @Autowired
    private SysUserDao sysUserDao;
    @Autowired
    private SysUserService sysUserService;
    @Autowired
    private SysMenuDao sysMenuDao;

    /**
     * 授权(验证权限时调用)
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        SysUserEntity user = (SysUserEntity) principals.getPrimaryPrincipal();
        Long userId = user.getId();
        List<String> permsList;

        //系统管理员，拥有最高权限
        if (userId == Constant.SUPER_ADMIN) {
            List<SysMenuEntity> menuList = sysMenuDao.selectList(null);
            permsList = new ArrayList<>(menuList.size());
            for (SysMenuEntity menu : menuList) {
                permsList.add(menu.getPerms());
            }
        } else {
            permsList = sysUserDao.queryAllPerms(userId);
        }

        //用户权限列表
        Set<String> permsSet = new HashSet<>();
        for (String perms : permsList) {
            if (StringUtils.isBlank(perms)) {
                continue;
            }
            permsSet.addAll(Arrays.asList(perms.trim().split(",")));
        }

        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.setStringPermissions(permsSet);
        return info;
    }

    /**
     * 认证(登录时调用)
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(
            AuthenticationToken authcToken) throws AuthenticationException {
//        ShiroUtils.onlyOneLogining(authcToken);
//        不能用post man 测试，postman 会带 JsessionId ,导致出错
        //UsernamePasswordToken token = (UsernamePasswordToken)authcToken;
        com.jy.framework.sys.shiro.UsernamePasswordUserTypeToken token = (com.jy.framework.sys.shiro.UsernamePasswordUserTypeToken) authcToken;
        //查询用户信息
//        SysUserEntity  user = sysUserDao.selectOne(new QueryWrapper<SysUserEntity>().lambda().eq(SysUserEntity::getUsername, token.getUsername()));
        SysUserEntity  user = sysUserService.selectByUsername(token.getUsername());
        //账号不存在
        if (user == null) {
            throw new UnknownAccountException("账号或密码不正确");
        }

        //账号锁定
        if (user.getStatus() == 0) {
            throw new LockedAccountException("账号已被锁定,请联系管理员");
        }

        System.out.println("存入时的hash对象:" + user.hashCode());

        System.out.println("密码========"+user.getPassword());
        SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(user, user.getPassword(), ByteSource.Util.bytes(user.getSalt()), getName());


        return info;
    }

//    @Override
//    public void setCredentialsMatcher(CredentialsMatcher credentialsMatcher) {
//        HashedCredentialsMatcher shaCredentialsMatcher = new HashedCredentialsMatcher();
//        shaCredentialsMatcher.setHashAlgorithmName(ShiroUtils.hashAlgorithmName);
//        shaCredentialsMatcher.setHashIterations(ShiroUtils.hashIterations);
//        super.setCredentialsMatcher(shaCredentialsMatcher);
//    }
}
